Anti-erosion flange sealing wellhead device of high-pressure underground gas storage well

Abstract

The utility model relates to the technical field of natural gas, and discloses a high-pressure underground gas storage well anti-erosion flange sealing wellhead device which comprises a valve body, an adjusting device is arranged on the inner side of the valve body, the adjusting device comprises a hand wheel, a threaded rod, a threaded sleeve, an installation bin, a baffle, a limiting rod and a sliding block, and the threaded rod is fixedly installed at the bottom of the hand wheel. And the outer side of the threaded rod is in threaded connection with a threaded sleeve. According to the anti-erosion flange sealing wellhead device for the high-pressure underground gas storage well, when the flow speed is controlled, firstly, a hand wheel is rotated to drive a threaded rod to move up and down, the threaded rod moves up and down to drive a baffle to move up and down, the baffle moves up and down so as to adjust flowing of liquid in the device and the flow of liquid passing through flanges on the two sides, and the requirement for flow adjustment is met; and meanwhile, the position between the mounting ring and the fixing plate is adjusted, so that the contact length of the flange plate and the pipeline is adjusted, the flange plate is more conveniently connected with the pipeline, and the sealing performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas, in particular to an anti-erosion flange sealing wellhead device for a high-pressure underground gas storage well. Background Art

[0002] Natural gas is generally stored in two ways: ground storage with high-pressure devices and underground storage. Ground storage uses high-pressure containers, which will have a certain impact on urban land use, safety, fire protection, etc., while underground gas storage wells can better solve this problem. It can save land area, improve safety, save the cost of safety auxiliary equipment and facilities, and have a long service life. Since the gas storage well is buried underground, it is not easily damaged by wind, rain and external physical damage. At the same time, since cementing cement is set outside, the corrosive medium in the soil is isolated and not easily damaged.

[0003] At present, the anti-erosion flange sealing wellhead device of the high-pressure underground gas storage well on the market adopts a flange structure, and the length of the flange is often fixed. When the distance between the flange and the pipeline is not enough, it is necessary to install another section of pipeline, thereby increasing the workload and facilitating the free adjustment of the air intake rate between the pipelines. Therefore, a high-pressure underground gas storage well anti-erosion flange sealing wellhead device is proposed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a wellhead sealing device for an anti-erosion flange of a high-pressure underground gas storage well, which is easy to adjust.

[0006] (II) Technical solution

[0007] According to the technical solution provided in the embodiment of the present application: an anti-erosion flange sealing wellhead device for a high-pressure underground gas storage well includes a valve body, an adjusting device is arranged on the inner side of the valve body, the adjusting device includes a handwheel, a threaded rod, a threaded sleeve, an installation bin, a baffle, a limit rod and a slider, a threaded rod is fixedly installed on the bottom of the handwheel, a threaded sleeve is threadedly connected to the outer side of the threaded rod, an installation bin is fixedly installed on the outer side of the threaded sleeve, a baffle is fixedly installed on the bottom of the threaded rod, a limit rod is hinged on the outer side of the baffle, and a slider is fixedly installed on the side of the limit rod away from the baffle.

[0008] Furthermore, the number of the limit rods and the number of the sliders are both two, and a slideway matched with the slider is provided on the inner side of the valve body, and the slider and the limit rod are limited to ensure the stability of the baffle movement.

[0009] Furthermore, a sealing layer is fixedly installed at the bottom of the installation bin, and the sealing layer is fixedly installed on the top of the valve body. The sealing layer can seal the connection between the installation bin and the valve body.

[0010] Furthermore, a connecting pipe is fixedly installed on the outer side of the valve body, and a fixing plate is fixedly installed on the outer side of the connecting pipe.

[0011] Furthermore, a mounting ring is fixedly installed on the outer side of the fixing plate, and a limiting plate is fixedly installed on the outer side of the mounting ring. The limiting plate can limit the mounting ring to prevent the mounting ring from being separated from the connecting pipe.

[0012] Furthermore, a flange is fixedly mounted on the outer side of the limiting plate, bolts are threadedly mounted on the inner side of the flange, threaded holes matching the bolts are provided on the inner side of the flange, and the bolts can be connected to the inner pipe of the flange for reinforcement.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an anti-erosion flange sealing wellhead device for a high-pressure underground gas storage well, which has the following beneficial effects:

[0015] The anti-erosion flange sealing wellhead device for high-pressure underground gas storage wells, when controlling the flow rate, firstly rotates the hand wheel to drive the threaded rod to move up and down, and the up and down movement of the threaded rod drives the baffle to move up and down, and the up and down movement of the baffle adjusts the flow of liquid inside the device, adjusts the liquid flow through the flanges on both sides to meet the flow regulation needs, and at the same time adjusts the position between the mounting ring and the fixing plate, thereby adjusting the contact length between the flange and the pipeline, so that the flange can be more conveniently connected to the pipeline and has better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 3 It is a front view of the structure of the utility model.

[0019] In the figure: 1. valve body; 2. adjusting device; 201. hand wheel; 202. threaded rod; 203. threaded sleeve; 204. mounting chamber; 205. baffle; 206. limit rod; 207. slider; 3. sealing layer; 4. connecting pipe; 5. fixing plate; 6. mounting ring; 7. limit plate; 8. flange; 9. bolt. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0022] like Figure 2 As shown, an anti-erosion flange sealing wellhead device for a high-pressure underground gas storage well includes a valve body 1, an adjusting device 2 is arranged on the inner side of the valve body 1, the adjusting device 2 includes a hand wheel 201, a threaded rod 202, a threaded sleeve 203, an installation bin 204, a baffle 205, a limit rod 206 and a slider 207, a threaded rod 202 is fixedly installed on the bottom of the hand wheel 201, a threaded sleeve 203 is threadedly connected to the outer side of the threaded rod 202, an installation bin 204 is fixedly installed on the outer side of the threaded sleeve 203, a sealing layer 3 is fixedly installed on the bottom of the installation bin 204, the sealing layer 3 is fixedly installed on the top of the valve body 1, and the sealing layer 3 can seal the connection between the installation bin 204 and the valve body 1.

[0023] A baffle 205 is fixedly installed at the bottom of the threaded rod 202, and a limiting rod 206 is hinged on the outer side of the baffle 205. There are two limiting rods 206 and two sliders 207. A slideway matching the slider 207 is provided on the inner side of the valve body 1. The slider 207 and the limiting rod 206 are limited to ensure the stability of the movement of the baffle 205. A slider 207 is fixedly installed on the side of the limiting rod 206 away from the baffle 205.

[0024] When implementing, follow these steps:

[0025] When controlling the flow rate, first turn the hand wheel 201 to drive the threaded rod 202 to move up and down. The up and down movement of the threaded rod 202 drives the baffle 205 to move up and down. The up and down movement of the baffle 205 adjusts the flow of liquid inside the valve body 1 and adjusts the liquid flow through the flanges on both sides to meet the flow regulation needs. At the same time, adjust the position between the mounting ring 6 and the fixing plate 5 to adjust the contact length between the flange 8 and the pipeline, so that the flange 8 can be more conveniently connected to the pipeline and has better sealing.

[0026] A pipe 4 is fixedly installed on the outside of the valve body 1, a fixing plate 5 is fixedly installed on the outside of the pipe 4, a mounting ring 6 is fixedly installed on the outside of the fixing plate 5, a limiting piece 7 is fixedly installed on the outside of the mounting ring 6, the limiting piece 7 can limit the mounting ring 6 to prevent the mounting ring 6 from being separated from the pipe 4, a flange 8 is fixedly installed on the outside of the limiting piece 7, a bolt 9 is threadedly installed on the inner side of the flange 8, a threaded hole matching the bolt 9 is opened on the inner side of the flange 8, and the bolt 9 can be connected to the inner side of the flange 8 for pipe reinforcement

[0027] To sum up, in the high-pressure underground gas storage well anti-erosion flange sealing wellhead device, when controlling the flow rate, firstly rotate the hand wheel 201 to drive the threaded rod 202 to move up and down, and the threaded rod 202 moves up and down to drive the baffle 205 to move up and down, and the baffle 205 moves up and down to adjust the flow of liquid inside the valve body 1, and adjust the liquid flow through the flanges on both sides to meet the flow regulation needs. At the same time, adjust the position between the mounting ring 6 and the fixing plate 5, so as to adjust the contact length between the flange 8 and the pipeline, so that the flange 8 can be more conveniently connected to the pipeline and has better sealing performance, which solves the problem that the existing device adopts a flange structure, and the flange length is often fixed, so that when the distance between the flange 8 and the pipeline is not enough, it is necessary to install another section of pipeline.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-erosion flange sealing wellhead device for a high-pressure underground gas storage well, comprising a valve body (1), characterized in that: An adjusting device (2) is provided on the inner side of the valve body (1); The adjusting device (2) comprises a hand wheel (201), a threaded rod (202), a threaded sleeve (203), a mounting bin (204), a baffle (205), a limiting rod (206) and a sliding block (207); the threaded rod (202) is fixedly mounted on the bottom of the hand wheel (201); the threaded sleeve (203) is threadedly connected to the outside of the threaded rod (202); the mounting bin (204) is fixedly mounted on the outside of the threaded sleeve (203); the baffle (205) is fixedly mounted on the bottom of the threaded rod (202); the limiting rod (206) is hingedly connected to the outside of the baffle (205); and the sliding block (207) is fixedly mounted on a side of the limiting rod (206) away from the baffle (205).

2. The anti-erosion flange sealing wellhead device for high-pressure underground gas storage wells according to claim 1, characterized in that: The number of the limit rods (206) and the number of the sliding blocks (207) are both two, and a slideway matching the sliding blocks (207) is provided on the inner side of the valve body (1).

3. The anti-erosion flange sealing wellhead device for high-pressure underground gas storage wells according to claim 1, characterized in that: A sealing layer (3) is fixedly mounted on the bottom of the mounting chamber (204), and the sealing layer (3) is fixedly mounted on the top of the valve body (1).

4. The anti-erosion flange sealing wellhead device for high-pressure underground gas storage wells according to claim 1, characterized in that: A connecting pipe (4) is fixedly mounted on the outer side of the valve body (1), and a fixing plate (5) is fixedly mounted on the outer side of the connecting pipe (4).

5. The anti-erosion flange sealing wellhead device for high-pressure underground gas storage wells according to claim 4, characterized in that: A mounting ring (6) is fixedly mounted on the outer side of the fixing plate (5), and a limiting plate (7) is fixedly mounted on the outer side of the mounting ring (6).

6. The anti-erosion flange sealing wellhead device for high-pressure underground gas storage wells according to claim 5, characterized in that: A flange (8) is fixedly mounted on the outer side of the limiting plate (7), a bolt (9) is threadedly mounted on the inner side of the flange (8), and a threaded hole matching the bolt (9) is provided on the inner side of the flange (8).

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